Abstract: The present invention relates to a salmon roe selecting and washing machine which can completely remove faulty roe and foreign substances from normal, mature roe, wherein the salmon roe selecting and washing machine has at least one salmon roe transferring plate 11 extending in the salmon roe transferring direction, in which a number of slits 14 having such a width that normal salmon roe does not fall down are formed, and resiliently supporting a salmon roe transferring portion 7 inclined downward in the salmon roe transferring direction at a frame 5 thereof, a vibrating means 16 is provided at the salmon roe transferring portion, and a shower means 18 for sprinkling salt water is secured above the salmon roe transferring portion 17. By sprinkling salt water by the shower means 18 while vibrating the salmon roe transferring portion 7 by the vibrating means, and transferring salmon roe by streams of salt water, faulty roe and foreign substances, etc.

Abstract: The present invention provides a toy comprising: a rotator which is capable of exhibiting a gyro effect; a driver connected to the rotator for rotating the rotator to allow the rotator to exhibit the gyro effect; and a device capable of causing the toy falling down or tilting to show a spin or a rotation in the same direction as a rotation of the rotator so that a rotational axis of the rotator rotates or swings to draw a cone-shaped locus thereof, thereby to reduce swing motion of the rotational axis or to narrow a spread of the cone-shaped locus, whereby the rotational axis of the rotator is forced and moved onto a center and vertical axis, and the toy comes stand right-up and stabilized in a standing right-up position.

Abstract: The invention provides a toy vehicle comprising a rear frame being provided with rear tires, and a front frame being provided with front tires, the front frame being retractably mounted for a expansion-and-contraction movement of the toy vehicle or viceversa.

Abstract: A rack assembly includes two stands each including two upright legs and a supporting section disposed there between. Two connecting rods are each mounted between the two upright legs of a corresponding one of the two stands. At least one supporting rack is mounted between the two connecting rods and includes two side bars each located adjacent to a corresponding one of the two connecting rods and each formed with at least one hook portion defining a recess for receiving an associated connecting rod. At least one retaining ring is fixedly mounted between the supporting section of the two stands.

Abstract: A toy vehicle with a rear frame having rear tires, and a front frame having front tires, the front frame being retractably mounted for an expansion-and-contraction movement of the toy vehicle.

Abstract: A radio-controlled toy missile launcher with missile launch mount having a first end mounted on a chassis and a second end movable upward and downward. The missile launch mount has at least one missile projector accommodating a missile. A supporting member is provided to mechanically connect the chassis to the missile launch mount for supporting the missile launch mount. The supporting member is capable of rising up and falling down the second end of the missile launch mount. A thrust applying unit is provided in the missile projector for applying the missile with a thrust enough to allow launching of the missile. A missile holding member is provided in the missile projector for holding the missile from being launched. A release member engages the missile holding member for moving the missile holding member to release the missile from holding by the missile holding member thereby to allow launching of the missile by the thrust force.

Abstract: A counter gear mechanism having a large gear coaxially engaged to a small gear. The large gear comprises a disk-like portion and a circumferentially extending portion continuously extending on a peripheral portion of the disk-like portion. The circumferentially extending portion has a circumferential outer surface on which first gear teeth are provided. The small gear comprises a disk-like plate and a body being cylindrically shaped to have a circumferential outer surface on which second gear teeth are provided. A tubular member, provided at a center of the disk-like portion, defines a hole and extends along a rotational axis around which the large gear rotates. At least one recessed portion, formed in the disk-like portion, extends in a circumferential direction relative to the rotational axis. At least one projection is fixed to the disk-like plate of the small gear on an opposite side to the side on which the body is provided.

Abstract: A radio controlled toy vehicle having a radio-controllable engine which starts by a motor and is capable of moving the toy vehicle in forward and reverse direction under the control of a servo mechanism, wherein the toy vehicle travels in a forward direction by use of driving power generated by the engine and travels in a reverse direction by use of driving power generated by the motor.

Abstract: A jumping mechanism for a radio-controlled toy vehicle with a slender opening provided in a chassis of a toy vehicle; a rotary shaft provided on the chassis in a lateral direction, vertical to a longitudinal direction of the opening; a rotation mechanism mechanically connected to a first portion of the rotary shaft for rotating the rotary shaft; and at least a rotation arm being mechanically connected to a second portion of the rotary shaft and extending in a vertical direction in relation to the axis of the rotary shaft and having a rotation center positioned over the opening so that the rotation arm rotates in a plane vertical to the axis of the rotary shaft and so that, when the rotation arm is directed downward it passes through the opening of the chassis wherein a top portion of the rotation arm is positioned below the bottom level of the toy vehicle.

Abstract: The present invention provides a steering system provided on a chassis of a toy car comprising the following elements. A rotatable steering plate is rotatably provided on the chassis so as to rotate in a horizontal plane by a predetermined maximum angle toward left and right directions from a longitudinal center axis of the chassis. A spring member is provided on the chassis and mechanically connected to the rotatable steering plate at a position spaced apart from the longitudinal center axis of the chassis for forcing the rotatable steering plate to rotate and tilt toward one of the left and right directions from the longitudinal center axis of the chassis. A steering motor is provided on the chassis for generating a rotation power and the steering motor having a motor shaft. A rotary shaft is provided on the chassis. A transmission system mechanically connects the motor shaft and the rotary shaft for transmitting the rotation power generated by the steering motor into the rotary shaft.

Abstract: A toy vehicle with a rear frame having rear tires, and a front frame having front tires, the front frame being retractably mounted for an expansion-and-contraction movement of the toy vehicle.

Abstract: An improved radio-controlled track-driven vehicle comprises an innovative belt drive structure in which the rear wheels engage with the belt in positive drive, and the front wheels engage with the belt in frictional drive. According to one embodiment of the invention, the drive belt has taller central teeth that are received within a central groove of the front and rear wheels, and shorter lateral teeth that mesh with complementary toothed regions of the rear wheels and frictionally contact corresponding smooth cylindrical surfaces of the front driven wheels. In another embodiment of the invention, the belt teeth extend transversely across most of the width of the belt, with alternate teeth having disposed thereon a taller central tooth to be received within the wheel grooves.

Abstract: The invention provides a novel toy vehicle comprising a body, a chassis at least having an upper surface and a rolling oscillation generating unit provided on the upper surface of the chassis for permitting the body to exhibit a rolling oscillation motion around a horizontal axis. The rolling oscillation generating unit comprises a plate mounted to an internal surface of the body, a plurality of connection rods for mechanically and movably connecting the plate to the upper surface of the chassis, and at least a pushing up member mechanically connected to the chassis and having at least two contacting portions for contacting on a flat bottom surface of the plate at least at its two symmetrical positions spaced along a vertical direction to the horizontal axis so as to permit either of the two contacting portions to pushing up the bottom surface of the plate.

Abstract: An induction coil is formed by winding an electrically conductive wire around an iron core, and at least one turn of a pipe of electrically conductive material is wound around the induction coil. The pipe is short-circuited at positions other than where the pipe is wound around the induction coil. An A.C. power source is connected to the induction and preheated fluid is supplied to the pipe to be further heated by induction within the pipe. Since the pipe has a large heat transfer area, efficient heat exchange can be obtained. This heating system is connected to a steam generator, which supplies the preheated fluid to it. The steam generator includes an induction coil of an electrically conductive wire wound on an iron core and a metal material forming a plate disposed on the iron core. The bottom surface of the metal material provides a magnetic flux path for the induction coil. An A.C.

Abstract: A sound effect device for radio controllable toy vehicles is capable of producing various realistic sounds such as a klaxon horn, an emergency braking sound, a small braking sound, and a tire-squealing sound upon sharp turning. The sounds are generated depending upon the driving condition of the toy vehicle, and the device is further capable of producing realistic sounds that are readily modified various types of toy vehicles. The device may have an engine sound on/off switch and a starting switch that causes production of a first engine sound which is thereafter varied based on the driving condition of the vehicle. Further, the device may generate certain sounds only upon simultaneous detection of two signals controlling the movements of the vehicle.

Abstract: A battery receptacle in which either of individual dry batteries and individual or packaged nickel-cadmium batteries can be received to be used as a power source for a radio controllable motor toy so that interchangeability of batteries used in the motor toys and space saving can be realized.

Abstract: In an air-mat apparatus, air mat has four air bags, two of which have a plurality of air-jetting holes and two others of which have no holes. In a preferred embodiment, the bags having the air-jetting holes are arranged in a zigzag pattern while the remaining two bags are arranged in a comb-shaped pattern. Air ports for the bags having air-jetting holes are connected through flowrate-adjusting valves to an air-distributing valve, while the air ports of the bags having no holes are also connected to the air-distributing valve but not through the flowrate-adjusting valves. The arrangement permits two of the air bags to be inflated and deflated to a specific degree, and the other two air bags to be inflated and deflated to a different degree.

Abstract: A bathtub having a pump, comprising a tub having side walls one of which has an inner surface, an outer surface, and a thin portion made of magnetically permeable material, pump means secured to the inner surface of the thin portion, for taking in hot water from said tub and pressurizing the hot water, motor means secured to the outer surface of the thin portion and opposing said pump means, and a magnetic coupling means for mangetically connecting said pump means and said motor means.

Abstract: A direction-converting device for a remote-controlled toy is disclosed wherein a rotor shaft is supported between the opposite contact faces of coil bobbins of an equally divided electromagnetic coil, said each bobbin accommodating a rotor magnet rotatably in a hollow inside and being wound in parallel with the rotor shaft in multiple turns with coils to form an electromagnetic coil assembly, and said rotor shaft at its one end communicating through a crank with a controlling element for shifting the direction so as to allow the electromagnetic coil to control the magnetic polarity of the rotor magnet by means of a remote control system.